A seat track assembly including a first rail and a second rail spaced apart by a distance and extending parallel with respect to one another, wherein at least one of the first and second rails having a first receiver, a second receiver, the first and second receivers longitudinally translatable with respect to each other, and a sliding member disposed therebetween, wherein the sliding member defines an aperture extending at least partially therethrough.

An aircraft landing gear assembly including structural members coupled via a coupling including a bearing. The bearing has a body defining a first bearing surface arranged to contact a first counter-face of the coupling. The first bearing surface is defined by a first tubular layer of fibre reinforced polymer of a first type having an axis and containing synthetic fibres of a first type wound around and along the axis of the bearing. The bearing body further has a second tubular layer of fibre reinforced polymer of a second type containing synthetic fibres of a second type wound around and along the axis of the bearing.

A proprotor system for a tiltrotor aircraft having a helicopter flight mode and an airplane flight mode. The proprotor system includes a yoke having a plurality of blade arms with inboard pockets. A centrifugal force and shear bearing assembly is disposed in each of the inboard pockets of the yoke. Each of a plurality of proprotor blades is coupled to the yoke by one of the bearing assemblies such that each proprotor blade has a pitch change degree of freedom about a pitch change axis and a tilting degree of freedom about a focal point. Each bearing assembly includes a centrifugal force bearing coupled to the yoke, a shear bearing coupled to the yoke and an inboard beam coupled between the centrifugal force bearing and the shear bearing. Each inboard beam is coupled to a respective proprotor blade.

A metallic bearing body for a sliding bearing includes a main body and a plurality of protrusions extending outward from the main body. Each of the plurality of protrusions extends in a longitudinal direction from the main body to an upper surface that is distal from the main body and has at least one through-bore that extends through the protrusion transversely relative to the longitudinal direction.

Embodiments of the present disclosure are directed to an adhesive layer, bearing including the adhesive layer, and methods of forming. The adhesive layer can include a mixture of a first polymer, a second polymer, and a third polymer, wherein the second polymer includes ethylene tetrafluoroethylene, and the third polymer includes a modified ethylene tetrafluoroethylene, ethylene tetrafluoroethylene hexafluoropropylene, or a combination thereof. In a particular embodiment, the first polymer can include an aromatic polymer. In another embodiment, the adhesive layer can have a tensile stress in an extrusion direction of at least 30 MPa.

A bearing element may include a bearing substrate and a sliding layer of a sliding layer material. The sliding layer material may include a polymeric material and nanodiamonds. The nanodiamonds may also be surface-functionalized nanodiamonds. The bearing element may be suitable for automotive applications, including, but not limited, use within automotive engines.

A sliding member includes a metallic substrate, a porous layer formed on a surface of the metallic substrate, and a sliding layer that covers the porous layer. The porous layer is made of a metal itself or an alloy composition. The sliding layer is made of a lead-free resin composition. The resin composition contains an essential additive, optionally an optional additive, and a fluororesin. The essential additive is any one of a combination of a zinc compound and a carbon fiber, a combination of a zinc compound and an iron oxide, and a combination of a zinc compound, a carbon fiber and an iron oxide. A total content of the essential additive and the optional additive is 10 vol % or more and 35 vol % or less in the resin composition.

A bearing arrangement with a first bearing layer comprising a first bearing support element and a second bearing layer comprising a second bearing support element, the first and second bearing layers being glidingly interconnected by at least one intermediate gliding element, wherein at least one first gliding surface is arranged between the first bearing support element and the at least one intermediate gliding element, and wherein at least one second gliding surface is arranged between the second bearing support member and the at least one intermediate gliding element, the at least one intermediate gliding element being elastically attached to the first bearing support element by means of at least one first flexible connector and to the second bearing support element by means of at least one second flexible connector.

Provided is a sliding member and a bearing using the sliding member. The sliding member contains a metallic substrate, a porous layer formed on a surface of the metallic substrate, and a sliding layer covered on the porous layer. The sliding layer is made of a lead-free resin composition. The lead-free resin composition includes a pitch-based carbon fiber, a fluorocarbon resin, and any of or a combination of two or more of aramid fiber, iron oxide, molybdenum disulfide, graphite, and zinc, zinc alloy, or zinc compound. 0.5 weight % or more and 17 weight % or less of a pitch-based carbon fiber is included. A total addition amount of additives excluding the fluorocarbon resin is 25 volume % or less.

A sliding element for an engine may include a polymer-based overlay layer disposed on a metallic substrate. The polymer-based overlay layer may include a polymer-based matrix and a metal particulate. The metal particulate may be a surface treated metal particulate.